The truest sayings are paradoxical.
A great country needs more people to serve it. A small country needs more people to serve. So, if both shall get what they need, the great country ought to yield.
Requite injury with kindness.
You cannot receive what you don't give. Outflow determines inflow.
All things carry yin and embrace yang. They reach harmony by blending with the vital breath.
A good traveler leaves no tracks. Good speech lacks fault-finding.